A former employee with the company [Trek Bicycle Corp.] told Wisconsin Reporter that John Burke, Mary’s brother and current Trek president, had to let his sister go.

The former employee, who asked not to be identified for fear of
reprisal from the Burke family, said Mary Burke was made to return to
Wisconsin and apologize to a group of about 35 Trek executives for her
treatment of employees and for the plummeting European bottom line.

Managers in Europe used to call Burke “pit bull on crack” or “Attila the Hun,” one source said.

“She never made money in Europe when she was there … Germany was gushing blood and it would take profitability from everywhere else,” the former employee said.